Improvement in vises for joiner s use



amasar@ JoNATHANVGooD, or LANCASTER, PENNSYLVANIA.

Letters Patent No.1112,801, datedMarch 21, 1871.

y-IMPROVEMENT IN VISES FOR JINERS USE;

The Schedule referred to in these Letters Patent' and making part of the same.

I, JONATHAN GOOD, of the city of Lancaster, in

the county-of Lancaster and State of Pennsylvania, have invented certain Improvements in avVise for Holding the Mitered Corners ofglicture-Frames or the like for glueing or tacking the same, ofwhich the following is a specification. y The nature'of my invention consists in providing a vise having two jaws, to operate at right angles one with the other, to it up against a square head, for the purpose of holding two pieces of a molding or frame on each side of the-mitered corner,^so that the two can be firmly held in place and tacked together with ease on each side of the coruer,thereby preventing vexatious, slips, and, much loss of valuable time. The drawing clearly shows the construction and operation of the same,

Figure 1 is a perspective view, showing the mitered -corner 'and tacks in the frame held in the jaws, and vadjusted by the siide-plate D.

Figure 2 is a side elevation of the long-jaw C, sliding top D, screw I, and guide perforation H, andfemale screw h, in sideA; G,o the guide stem o'r slide to the jaw C, entering face-or side A1.'

Figure 3 shows the short jaw B, with its guide H, entering side A; the side plate D pushed out against the shoulder of the rebate o r rabbetin the frame. F; the adjusting thumb-screw I, which moves the, plate 1 the perforation for the guide G and female-screw c, for the screw c to operate the jaw O; with the baseanges K1, K2, and K3, forsecuriug the same.

The foregoing will suffice toenable any one skilled in the art tomake au'd use/my invention.

" Simply as a double vise there maybe no special v novelty; but any one who has joined picture-frames, using all vsorts of devices, and experienced the annoyance of slips and displacements while iu the act of racking the corners, as I have for years, will readily appreciate thisimprovement as one of the things much needed.l I

The central post A on 'its flanged base, otherwise fmay be affixed on the top of the work-bench. The

top made truly square, withthe jaws B O fitting up neatly on two sides, at right angles to'each other, might answer in themselves; but it frequently' happ ens that the mite!"l is not exactly at 450, or wanting a square face on account of-in'equality, so that it is necessary to make an adjustment. This I accomplish by means of a sliding top-plate, D,k between the side ledges E, (together forming a level top.)

Thissliding-plate has a central arm beneath it, vwith a screw-thread in it for the turning-screw, with its head I, by which the plate is moved back and forth to make the adjustment. By this simple but efficient arrangement the corner is firmly held, and can be secured by driving the springs from both sides, without change in the gripe or adjustment.

.I am -not aware that a v ise with two pairs of jaws at right angles was ever known or used for the purpose of uniting mit'ered corners.

i What I claim as my invention, and desire to secure by Letters Patent, is y 1. rIhe central "four-sided column A, in combination with the jaws B 0 operating at right angles, arranged substantially in the manner and for the purpose speciied.

2. The top sliding-plate D, with the screw arrangement I, in combination with the center A, jaws B C, slides Gr H, all operating in the manner and for the purpose herein set forth and shown.,

- JONATHAN GOOD.

Witnesses:

J. W. FISHER, J AooB STAUFFEB. 

